נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Inhibition of β-catenin-mediated transactivation by cadherin derivatives
Year:
1998
Authors :
שדות, עינת
;
.
Volume :
95
Co-Authors:
Sadot, E., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Simcha, I., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Shtutman, M., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Ben-Ze'ev, A., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Geiger, B., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Facilitators :
From page:
15339
To page:
15344
(
Total pages:
6
)
Abstract:
We studied the effect of N-cadherin, and its free or membrane-anchored cytoplasmic domain, on the level and localization of β-catenin and on its ability to induce lymphocyte enhancer-binding factor 1 (LEF-1)-responsive transactivation. These cadherin derivatives formed complexes with β-catenin and protected it from degradation. N-cadherin directed β-catenin into adherens junctions, and the chimeric protein induced diffuse distribution of β-catenin along the membrane whereas the cytoplasmic domain of N-cadherin colocalized with β-catenin in the nucleus. Cotransfection of β-catenin and LEF-1 into Chinese hamster ovary cells induced transactivation of a LEF-1 reporter, which was blocked by the N-cadherin-derived molecules. Expression of N-cadherin and an interleukin 2 receptor/cadherin chimera in SW480 cells relocated β-catenin from the nucleus to the plasma membrane and reduced transactivation. The cytoplasmic tails of N- or E-cadherin colocalized with β-catenin in the nucleus, and suppressed the constitutive LEF-1-mediated transactivation, by blocking β-catenin-LEF-1 interaction. Moreover, the 72 C-terminal amino acids of N-cadherin stabilized β-catenin and reduced its transactivation potential. These results indicate that β-catenin binding to the cadherin cytoplasmic tail either in the membrane, or in the nucleus, can inhibit β-catenin degradation and efficiently block its transactivation capacity.
Note:
Related Files :
animal cell
Animals
Cadherins
carboxy terminal sequence
cell membrane
Chickens
immunoprecipitation
עוד תגיות
תוכן קשור
More details
DOI :
10.1073/pnas.95.26.15339
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26095
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:20
Scientific Publication
Inhibition of β-catenin-mediated transactivation by cadherin derivatives
95
Sadot, E., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Simcha, I., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Shtutman, M., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Ben-Ze'ev, A., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Geiger, B., Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
Inhibition of β-catenin-mediated transactivation by cadherin derivatives
We studied the effect of N-cadherin, and its free or membrane-anchored cytoplasmic domain, on the level and localization of β-catenin and on its ability to induce lymphocyte enhancer-binding factor 1 (LEF-1)-responsive transactivation. These cadherin derivatives formed complexes with β-catenin and protected it from degradation. N-cadherin directed β-catenin into adherens junctions, and the chimeric protein induced diffuse distribution of β-catenin along the membrane whereas the cytoplasmic domain of N-cadherin colocalized with β-catenin in the nucleus. Cotransfection of β-catenin and LEF-1 into Chinese hamster ovary cells induced transactivation of a LEF-1 reporter, which was blocked by the N-cadherin-derived molecules. Expression of N-cadherin and an interleukin 2 receptor/cadherin chimera in SW480 cells relocated β-catenin from the nucleus to the plasma membrane and reduced transactivation. The cytoplasmic tails of N- or E-cadherin colocalized with β-catenin in the nucleus, and suppressed the constitutive LEF-1-mediated transactivation, by blocking β-catenin-LEF-1 interaction. Moreover, the 72 C-terminal amino acids of N-cadherin stabilized β-catenin and reduced its transactivation potential. These results indicate that β-catenin binding to the cadherin cytoplasmic tail either in the membrane, or in the nucleus, can inhibit β-catenin degradation and efficiently block its transactivation capacity.
Scientific Publication
You may also be interested in